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A Study on the Performance of the Ring-type Impulse Turbine for Wave Energy Conversion  

HYUN BEOM-SOO (Division of Ocean Systems Engineering, Korea Maritime University)
MOON JAE-SEUNG (Division of Ocean Systems Engineering, Korea Maritime University)
HONG SEOK-WON (Maritime and Ocean Engineering Research Institute)
KIM KI-SUP (Maritime and Ocean Engineering Research Institute)
Publication Information
Journal of Ocean Engineering and Technology / v.20, no.1, 2006 , pp. 20-25 More about this Journal
Abstract
This paper deals with the design and aerodynamic analysis of a so-called 'ring-type' impulse turbine for wave energy conversion. Numerical analysis was performed using the CFD cock, FLUENT. The main idea of the proposed turbine rotor was to minimize the adverse effect of tip clearance of the turbine blade; the design was borrowed from a ducted propeller with connected ring tip for special purpose marine vehicles. Results show that the efficiency increases up to $10\%$, depending on flaw coefficient, with the higher flaw coefficient yielding better efficiency. Decrease of input coefficient CA was the main reason for higher efficiency. Performance of ring-type rotor at various design parameters, as well as flaw conditions, was investigated, and the advantages and the disadvantages of the present impulse turbine were also discussed.
Keywords
Wave Energy; Impulse Turbine; CFD; Ring-type Turbine; Tip Treatment; End Plate; Cooper Mesh;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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